Examine source code of CommentCleanser

{
  "manifest_version": 3,
  "name": "CommentClenser",
  "version": "1.0",
  "description": "Remove stupid ahh youtube comments",
  "icons": {
    "16": "icon.png",
    "32": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "action": {
    "default_title": "CommentClenser Settings",
    "default_popup": "options.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@comment-clenser",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "58.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "commentclenser.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "storage"
  ]
}